| 초록 |
The adhesion between cobalt salt incorporated rubber compounds and brass-plated steel cords was studied to understand the role of cobalt salt as an adhesion promoter. An improvement in adhesion was shown with the low loading of cobalt salt in the range 0.5∼1 phr, while decline of adhesion was significantly observed with high loading at 2 phr and a long aging time of 15 days under humidity aging. The adhesion interphase between the brass plated steel cord and the rubber compound studied using AES showed stabilized depth profile by cobalt salt incorporation as low loading of cobalt salt, resulting in the enhancement of the adhesion retention. For the high low loading of cobalt salt, adhesion interphase grew excessively especially ZnO layer under humidity aging. |
